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| ** This file is part of the examples of the Qt Toolkit. |
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| |
| #include "freezetablewidget.h" |
| |
| #include <QScrollBar> |
| #include <QHeaderView> |
| |
| //! [constructor] |
| FreezeTableWidget::FreezeTableWidget(QAbstractItemModel * model) |
| { |
| setModel(model); |
| frozenTableView = new QTableView(this); |
| |
| init(); |
| |
| //connect the headers and scrollbars of both tableviews together |
| connect(horizontalHeader(),&QHeaderView::sectionResized, this, |
| &FreezeTableWidget::updateSectionWidth); |
| connect(verticalHeader(),&QHeaderView::sectionResized, this, |
| &FreezeTableWidget::updateSectionHeight); |
| |
| connect(frozenTableView->verticalScrollBar(), &QAbstractSlider::valueChanged, |
| verticalScrollBar(), &QAbstractSlider::setValue); |
| connect(verticalScrollBar(), &QAbstractSlider::valueChanged, |
| frozenTableView->verticalScrollBar(), &QAbstractSlider::setValue); |
| |
| |
| } |
| //! [constructor] |
| |
| FreezeTableWidget::~FreezeTableWidget() |
| { |
| delete frozenTableView; |
| } |
| |
| //! [init part1] |
| void FreezeTableWidget::init() |
| { |
| frozenTableView->setModel(model()); |
| frozenTableView->setFocusPolicy(Qt::NoFocus); |
| frozenTableView->verticalHeader()->hide(); |
| frozenTableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed); |
| |
| viewport()->stackUnder(frozenTableView); |
| //! [init part1] |
| |
| //! [init part2] |
| frozenTableView->setStyleSheet("QTableView { border: none;" |
| "background-color: #8EDE21;" |
| "selection-background-color: #999}"); //for demo purposes |
| frozenTableView->setSelectionModel(selectionModel()); |
| for (int col = 1; col < model()->columnCount(); ++col) |
| frozenTableView->setColumnHidden(col, true); |
| |
| frozenTableView->setColumnWidth(0, columnWidth(0) ); |
| |
| frozenTableView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
| frozenTableView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
| frozenTableView->show(); |
| |
| updateFrozenTableGeometry(); |
| |
| setHorizontalScrollMode(ScrollPerPixel); |
| setVerticalScrollMode(ScrollPerPixel); |
| frozenTableView->setVerticalScrollMode(ScrollPerPixel); |
| } |
| //! [init part2] |
| |
| |
| //! [sections] |
| void FreezeTableWidget::updateSectionWidth(int logicalIndex, int /* oldSize */, int newSize) |
| { |
| if (logicalIndex == 0){ |
| frozenTableView->setColumnWidth(0, newSize); |
| updateFrozenTableGeometry(); |
| } |
| } |
| |
| void FreezeTableWidget::updateSectionHeight(int logicalIndex, int /* oldSize */, int newSize) |
| { |
| frozenTableView->setRowHeight(logicalIndex, newSize); |
| } |
| //! [sections] |
| |
| |
| //! [resize] |
| void FreezeTableWidget::resizeEvent(QResizeEvent * event) |
| { |
| QTableView::resizeEvent(event); |
| updateFrozenTableGeometry(); |
| } |
| //! [resize] |
| |
| |
| //! [navigate] |
| QModelIndex FreezeTableWidget::moveCursor(CursorAction cursorAction, |
| Qt::KeyboardModifiers modifiers) |
| { |
| QModelIndex current = QTableView::moveCursor(cursorAction, modifiers); |
| |
| if (cursorAction == MoveLeft && current.column() > 0 |
| && visualRect(current).topLeft().x() < frozenTableView->columnWidth(0) ){ |
| const int newValue = horizontalScrollBar()->value() + visualRect(current).topLeft().x() |
| - frozenTableView->columnWidth(0); |
| horizontalScrollBar()->setValue(newValue); |
| } |
| return current; |
| } |
| //! [navigate] |
| |
| void FreezeTableWidget::scrollTo (const QModelIndex & index, ScrollHint hint){ |
| if (index.column() > 0) |
| QTableView::scrollTo(index, hint); |
| } |
| |
| //! [geometry] |
| void FreezeTableWidget::updateFrozenTableGeometry() |
| { |
| frozenTableView->setGeometry(verticalHeader()->width() + frameWidth(), |
| frameWidth(), columnWidth(0), |
| viewport()->height()+horizontalHeader()->height()); |
| } |
| //! [geometry] |
| |
| |